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(No Model.)

0. M. MORSE.

DUST COLLECTOR.

No. 370,021. Patented Sept. 13, 1887.

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IlNrTnn STATES PATENT Ormea.

OBVILLE M. MORSE, OF JACKSON, MICHIGAN, ASSIGNOB TOTHE KNICKER- BOCKERCOMPANY, OF SAME PLACE.

DUST=COLLECTOFL SPECIFICATION forming part of Letters Patent No.370,021, dated September 13, 1887.

Original application filed June 9, 1836, Serial No, 204,684.

To all whom it may concern:

Be it known that I, ORviLLE M. Monsn, of the city of Jackson, in thecounty of Jackson and State of Michigan, have invented a new and usefulImprovement in Dust-Collectors, of

which the following is a specification.

This invention relates to a dust-collector Which is provided with aconical or tapering separatingchamber, into which the dustladen 1o airis delivered from a tangential inlet-spout, whereby the air is caused toassume a whirling or gyrating motion in the separating-chamber. Thismotion of the air causes the solid particles to pass into the outerlayer of the I5 whirling body of air and to be deposited against theinner surface of the separating-chamber,

which latter is provided with a dischargeopening for the separated dustand an escapeopening for the purified air. A dust-collector 2o ot' thiskind is described and claimed in an application for patent led by meMarch 31, 1886, Serial No. 197,307. It is found in practice that thetine and light dust follows the tapering Wall oi' the separating-chambertoward the small end thereof, while larger bulky particles of the sizeofa kernel of grain and larger move under the-intluence of centrifugalforce in an opposite direction toward the large end of theseparating-chamber.

The object of my present invention is toconstructthedust-collectorinsuchmannerthatthe large solid particles arefreely discharged from the separating-chamber; and my invention consiststo that end of the improvements which will be hereinafter fullydescribed, and pointed out in the claims.

In the accompanying` drawings, Figure 1 is a sectional elevation ol'inyimproved dust-collector. Fig. 2 is a top plan view thereof on a to areduced scale. Fig. 3 is a horizontal section in line ai x, Fig. 1, on areduced scale. Fig. 4t is a longitudinal vertical section through thedust-discharge passage at the large end of the separating-chamber.

Like letters of reference refer to like parts in the several figures.

A represents the stationary frame of the Inachine, and B the conical ortapering separating-chamber Supported in the same.

Divided and this application filed August 22, 1887. Serial No. 247.540.(No model.)

C represents the spout through which the 5o dust-laden airenters thelarge end ol" the chamber B in a tangential direction.

d represents the dischargeopeniug for the fine or light dust, formed atthe apex or small end ofthe tapering chamber B. v

.E represents the cover or head which closes the large end ofthe chamberB, and which is provided with a large central opening, c, through Whichthe purified air escapes from the machine.

f is a tubular guard secured to the head E in the opening e.

g represents the discharge-passage for the large or heavy dust ormaterial, arranged at the periphery of the large end ofthe taperingseparating-chamber. rlhis passage is preferably formed by a recess cutinto the under side of the head E, as represented in Figs. 1 and 4, andextending outwardly from the interior of the chamber B to the outer sideof the head, as represented by dotted lines in Fig. 2. The outer end ofthe passage g connects with a descending spout, G, by Which the heavymaterial is conducted to a suitable receptacle.

' The dust-laden air enters the tapering chamber E in a tangentialdirection and assumes a whirling or gyrating motion in the same, forminga vortex in which the dust particles are quickly driven to the peripheryof the whirling body of air, thereby freeing the inner portion of thewhirling body of air from dust. The tine and light dust particles movein helical lines of gradually-decreasing radius toward the small end ofthe tapering chamber B and escape finally through the opening d. Thelarge and heavyparticles move in helical lines of gradually-increasingradius toward the large end of the tapering chamber B and escape finallythrough the passage g. The air which has been freed from dust escapesthrough the gr; opening e, which is protected by the depending tubularguard f. The latter prevents dust particles, which have just entered thechamber B by the spout C, from passing into thc outgoing current ofpurified air and escaping 95 with the same.

I do not wish to claim in this application the combination of thetubular guard with e 3vo,oz1

the separating-chamber, as this invention is claimed ,in an applicationled by me June 9, 1886, Serial N o. 204,684, of which the presentapplication is a subdivision.

I claimas my invention- 1. In a dust-collector, a taperingseparatingchamber providedwith an external inlet-spout entering the casetangentially, a dischargeopening for the escape of the heavy solidmatter, arranged at the large end of the separating-case, and a centralair-exit, substantially as set forth.

2. In a dust-collector, a tapering separatingchamber provided with anexternal inlet-spout entering the case tangentially, a dischargeopeningat the large end of the case for the escape of the heavy solid matter, adischargeopening for the light dust, and a-central airexit,substantially as set forth.

3. In a dust-collector, a tapering separatingcase provided at its apexwith an opening for the escape of thelight material and at its large endwith a central opening for the escape of the purified air and aperipheral opening for the escape ofthe heavy material, and meanswhereby the air is caused to whirl in the separating-case, substantiallyas set forth.

4. The combination, With the conical separating-chamber B, having adischarge-opening, d, at its apex, and a tangential air-inlet spout, C,of a head, E, provided With a central opening, e, and a recessedperipheral opening, g, substantially as set forth.

Witness my hand this 17th day of August, 1887.

Witnesses:

C. H. HIGDoN, SAML. H. CAMP.

ORVILLE M. MORSE. Y'

